<?php
  // set the user error handler method to be error_handler
  set_error_handler('error_handler', E_ALL);
  
  // error handler function
  function error_handler($errNo, $errStr, $errFile, $errLine)
  {
    // clear any output that has already been generated
    if(ob_get_length()) ob_clean();
    // output the error message 
    $error_message = 'ERRNO: ' . $errNo . chr(10) .
                     'TEXT: ' . $errStr . chr(10) .
                     'LOCATION: ' . $errFile . 
                     ', line ' . $errLine;
    echo $error_message;
    // prevent processing any more PHP scripts
    exit;
  }
?>
